1  """This is a test"""
       2  
       3  # Import the name nested_scopes twice to trigger SF bug #407394 (regression).
       4  from __future__ import nested_scopes, nested_scopes
       5  
       6  def f(x):
       7      def g(y):
       8          return x + y
       9      return g
      10  
      11  result = f(2)(4)